MCL injury is also part of the  Unhappy Triad , or the common injury of the MCL, ACL, and Meniscus all together, usually through a pivot shift type of mechanism.The most obvious sypmtom of MCL injury is pain. Following the injury, you will experience pain in the knee, usually along the iside of the joint.CL injury is also part of the  Unhappy Triad , or the common injury of the MCL, ACL, and Meniscus all together, usually through a pivot shift type of mechanism.
With hemangiosarcoma, the pericardium fills up with blood due to rupture of the tumor. When the tumor occurs in the skin, a mass or lump can usually be felt in or under the skin. The mass may become ulcerated and bleed. When the tumor occurs in a bone, it can cause pain and discomfort.
When the spleen is injured, blood may be released into the abdomen. The amount of bleeding depends on the size of the injury. A hematoma of the spleen does not bleed into the abdomen at first but may rupture and bleed in the first few days after injury, although rupture sometimes does not occur for weeks or months.